Welcome to One Harmony
News
2023.04.01
New digital voucher for one-category guestroom upgrades for Loyal & Exclusive Members (“My Voucher”) is now provided. Sign in is required to display the digital voucher. Please click here for display.
Special Offers
ADVANCE - early bird discount
Early booking plans are available! Book now online or at your nearest reservation center to enjoy our ADVANCE rate plan and experience Okura Nikko Hotels.
Click here for details
Contact Us
One Harmony Office
+81-3-6402-3388
Inquiry FormF. A. Q.
9:30-17:30 JST
(Closed Saturdays, Sundays and Holidays)
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